Sökning: "relative permittivity"
Visar resultat 1 - 5 av 10 uppsatser innehållade orden relative permittivity.
1. Condition Monitoring (CM) : Concept selection of sensors for monitoring of mechanical wear
M1-uppsats, Karlstads universitetSammanfattning : This bachelor thesis has been executed with the product development process double diamond. The thesis has been performed at Karlstad University in cooperation with Kongsberg Maritime in Sweden AB. The objective of the thesis has been to develop a condition monitoring system for Kongsberg’s waterjet department. LÄS MER
2. Development Of Lung Phantoms for Detection Of Acute Respiratory Distress Syndrome
Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Institutionen för materialvetenskapSammanfattning : The goal of this project was to fabricate a deflated and an inflated phantom to replicate how the human lung tissues’ permittivity changes under a pathological condition for instance acute respiratory distress syndrome (ARDS). Furthermore, the lung phantom should be shaped like real human lungs. LÄS MER
3. Numerical Simulations of Wave Propagation between a Left-Handed Material and a Right-Handed Material
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : The discovery of metamaterials has led to major advances in different fields of physics including optics, microwave engineering and acoustics. Specific to theoretical electromagnetism, the introduction of metamaterials have led to the development of negative-index materials (NIMs) with simultaneous negative permittivity and negative permeability with backward-wave propagation. LÄS MER
4. Study of different methodologies to determine relative dielectric constant of given substrate using fabrication, modelling and measurement strategies
Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för system- och rymdteknikSammanfattning : In this thesis, different methods for measuring the relative dielectric constant is investigated using simulations and experimental approaches. The first method is known as the S-parameter inversion method. In this method formulae is used to calculate the characteristic impedance of the microstrip line from measured S-parameters. LÄS MER
5. Radaranvändning för identifiering och lokalisering av olika material. : En undersökande studie med en pulskoherent radarsensor
Kandidat-uppsats, Mittuniversitetet/Institutionen för elektronikkonstruktionSammanfattning : Transportens och logistikens framtid kräver exakta och tillförlitliga men även kostnadseffektiva sensorer. I den här rapporten testas därför några attribut för en Pulse Coherent Radar för att avgöra om det är möjligt att urskilja en person från metall. LÄS MER